Re: ping time fluctuates, any idea?

2019-09-09 Thread Richard Procter
Hello, > On 9/09/2019, at 8:45 PM, Jihyun Yu wrote: > > It seems that time from ping command fluctuates. Here's a output from ping > command. > [...snip ping with negative rtt...] This is symptomatic of unsynchronized time stamp counters (TSC). I would expect that setting: # sysctl kern.time

Re: ral(4) problems on current/i386 ALIX

2016-11-28 Thread Richard Procter
On 28/11/2016, at 4:25 AM, Jan Stary wrote: > [...] > What kind of wifi are people using > on the ALIX serving as an AP? I'm running an RT2860 via ral(4) on an Alix 2d2 -- I'm seeing about 1.1MB/s when transferring 47MB from it through a couple of walls, and with another network at -74dBm on the s

Re: cuaU0 problems

2016-09-20 Thread Richard Procter
On 20/09/2016, at 9:53 PM, Richard Procter wrote: > > On 20/09/2016, at 8:00 AM, Edgar Pettijohn wrote: > >> On 16-09-19 19:56:31, Kapfhammer, Stefan wrote: >>> Hello Edgar, >>> >>> I have no Soekris, but Apu2 is also connected >>> with a

Re: cuaU0 problems

2016-09-20 Thread Richard Procter
On 20/09/2016, at 8:00 AM, Edgar Pettijohn wrote: > On 16-09-19 19:56:31, Kapfhammer, Stefan wrote: >> Hello Edgar, >> >> I have no Soekris, but Apu2 is also connected >> with a serial cable. >> >> When cable is plugged in the controlling pc >> before booting, it is to be found as /dev/cuaU???0. >

Re: NAT reliability in light of recent checksum changes

2015-06-15 Thread Richard Procter
On 7/03/2014, at 2:15 PM, Richard Procter wrote: > > I've some ideas about solutions [for modifying checksums more cleanly] but > will > leave those for another email. Shifting this old thread to tech@: I've posted a patch that re-instates the pf algorithm of OpenBSD 5.4

Re: NAT reliability in light of recent checksum changes

2014-03-06 Thread Richard Procter
On 27/02/2014, at 11:04 AM, Theo de Raadt wrote: > > There was a method of converting an in-bound checksum, due to NAT > conversion, into a new out-bound checksum. A process is required, > it's how NAT works. > > A new method of version is being used. It is mathematically equivelant > to the ol

Re: NAT reliability in light of recent checksum changes

2014-02-26 Thread Richard Procter
On 27/02/2014, at 11:04 AM, Theo de Raadt wrote: > I believe you are posting cast aspersions on the pf efforts. Theo, I'll insist then that I think pf is a superior piece of code which I benefit from every day, and that Henning's efforts to simplify it are so very welcome in a world addicted to

Re: NAT reliability in light of recent checksum changes

2014-02-26 Thread Richard Procter
On 24/02/2014, at 9:33 PM, Henning Brauer wrote: > * Richard Procter [2014-01-25 20:41]: >> On 22/01/2014, at 7:19 PM, Henning Brauer wrote: >>> * Richard Procter [2014-01-22 06:44]: >>>> This fundamentally weakens its usefulness, though: a correct >>&

Re: NAT reliability in light of recent checksum changes

2014-01-28 Thread Richard Procter
On 28/01/2014, at 4:19 AM, Simon Perreault wrote: > Le 2014-01-25 14:40, Richard Procter a écrit : >> I'm not saying the calculation is bad. I'm saying it's being >> calculated from the wrong copy of the data and by the wrong >> device. And it's not just

Re: NAT reliability in light of recent checksum changes

2014-01-25 Thread Richard Procter
On 22/01/2014, at 7:19 PM, Henning Brauer wrote: > * Richard Procter [2014-01-22 06:44]: >> This fundamentally weakens its usefulness, though: a correct >> checksum now implies only that the payload likely matches >> what the last NAT router happened to have in its memory &

Re: NAT reliability in light of recent checksum changes

2014-01-21 Thread Richard Procter
On 2014-01-15, Stuart Henderson wrote: > On 2014-01-14, Richard Procter wrote: >> >> I've a question about the new checksum changes. [...] >> My understanding is that checksums are now always recalculated when >> a header is altered, never updated. >>

NAT reliability in light of recent checksum changes

2014-01-14 Thread Richard Procter
Hi all, I'm using OpenBSD 5.3 to provide an Alix-based home firewall. Thank you all for the commitment to elegant, well-documented software which isn't pernicious to the mental health of its users. I've a question about the new checksum changes[0], being interested in such things and having lis